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An unexpectedly low Stratus optical coherence tomography false-positive rate in the non-nasal quadrants of Asian eyes: indirect evidence of differing retinal nerve fibre layer thickness profiles according to ethnicity

Cited 18 time in Web of Science Cited 16 time in Scopus
Authors
Kim, T W; Kim, T-W; Park, K H; Kim, D M
Issue Date
2008-06-05
Publisher
BMJ Publishing Group
Citation
Br J Ophthalmol 2008;92(6):735-739
Keywords
*Asian Continental Ancestry GroupDatabases, FactualFalse Positive ReactionsGlaucoma/*diagnosis/ethnologyPhotoreceptor Cells/anatomy & histologyReference ValuesRetina/*anatomy & histologyTomography, Optical Coherence/*methods/standards
Abstract
AIMS: To determine the frequency distribution of false-positive Stratus optical coherence tomography (OCT) results of healthy eyes in terms of peripapillary location. METHODS: One eye of each of 137 healthy Korean subjects was included. The false-positive rates (FPRs) relating to retinal nerve fibre layer (RNFL) thickness parameters were determined. RESULTS: Of the 12 clock-hour positions, the 2 and 4 o'clock positions showed the highest FPRs of 5.1% and 4.4%, respectively, and 7, 8 and 11 o'clock had the lowest FPRs of 0% at <5% level. At <1% level, 2 and 6 o'clock had an FPR of 0.7%, while the FPR was 0% for all other clock-hours. The FPRs for quadrant thicknesses at <5% level were: 0.7% for temporal; 0% for superior; 5.1% for nasal; and 2.2% for inferior. At <1% level, the inferior showed the highest FPR of 0.7%, and the other three quadrants 0%. According to line graph analysis, the 80-120 test point sections had FPRs of 4.4-6.6%, while the 0-40 and 210-256 sections were 0-0.7% at <5% level. At <1% level, the 40-60, 90-110 and 200-210 sections had 0.7%, 190-200 section 1.5%, and all other sections 0%. CONCLUSION: The FPR for the non-nasal region was much lower than expected at <5% level. Given that the current OCT normative database is based on a largely non-Asian population, these findings suggest that RNFL thickness profiles may differ according to ethnicity.
ISSN
1468-2079 (Electronic)
Language
English
URI
https://hdl.handle.net/10371/62012
DOI
https://doi.org/10.1136/bjo.2007.129502
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College of Medicine/School of Medicine (의과대학/대학원)Ophthalmology (안과학전공)Journal Papers (저널논문_안과학전공)
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